Okay, so I forced myself to take my Duloxetine (Cymbalta) 20mg this morning. It's been about 6 hours. I've had three panic attacks because I don't like taking meds. Relatively calm now, but started feeling nauseated trying to eat lunch and feel like vomiting. Also have a funny feeling, like I'm not all there? If that makes sense. Kinda floaty, like my body is weird to me. Is this normal? How long does it last?